January 7, 20197 yr Hello All, I have a 4TB parity drive I want to replace with a 10TB drive and 1 failed 3tb data drive i want to replace with another 10TB data drive. What way should i proceed please? Which order etc. Maybe 10tb as parity 2, wait for parity to build to to new 10tb then replace faulty 3tb data drive with new 10tb data drive? thanks.
January 7, 20197 yr Community Expert If the drive is really failed you may not be able to successfully sync parity2, in that case a parity swap would the correct and safer procedure, replace the data disk with the larger 10TB after that.
January 7, 20197 yr @johnnie.black, can you add parity2 on an array with a disabled disk? I'm working my way through the logic on that, and I think it should work, but I can't remember seeing anyone do it.
January 7, 20197 yr Community Expert You can, and if there are read errors you the failing disk they *should* be corrected by parity and the other disks, but they might not, like sometimes happens on a correcting check when there are errors on a disk and parity is incorrectly updated.
January 7, 20197 yr 2 minutes ago, johnnie.black said: You can, and if there are read errors you the failing disk they *should* be corrected by parity and the other disks, but they might not, like sometimes happens on a correcting check when there are errors on a disk and parity is incorrectly updated. If the disk is disabled it's not used at all, so it shouldn't matter. Parity2 would be entirely based on the emulated content, correct?
January 7, 20197 yr Community Expert 8 hours ago, crizz11 said: Hello All, I have a 4TB parity drive I want to replace with a 10TB drive and 1 failed 3tb data drive i want to replace with another 10TB data drive. What way should i proceed please? Which order etc. Maybe 10tb as parity 2, wait for parity to build to to new 10tb then replace faulty 3tb data drive with new 10tb data drive? thanks. Go to Tools - Diagnostics and attach the complete diagnostics zip file to your next post so we can all stop speculating and make some firm recommendation.
January 8, 20197 yr Another one bites the dust. https://en.wikipedia.org/wiki/ST3000DM001#Class_action Seriously though @crizz11, stop messing around and follow directions. 11 hours ago, trurl said: Go to Tools - Diagnostics and attach the complete diagnostics zip file to your next post so we can all stop speculating and make some firm recommendation If you don't do this, there is no way to make meaningful suggestions. There is a real risk you could lose data if you go about this incorrectly. Do you care about the data on your disks?
January 8, 20197 yr Community Expert He's running 6.1.7 Will require a lot more trouble to work through these diagnostics.
January 8, 20197 yr Community Expert *edit* these comments were all written based on the 6.1.7 diags. While I was looking at them he apparently upgraded to 6.6.6. Haven't looked at those yet. SMART for all disks looks OK to me, but system/vars is showing parity invalid and disk1 disabled. Not sure I know how to interpret what syslog is showing. 6 minutes after boot he tries to start the array, can't mount disk1, decides there was an unclean shutdown, tries to start a correcting parity check, then "nothing to sync"???
January 8, 20197 yr Author here is an older screen grab from back on 6.1.7 when i saw 6326 errors against this now automatically disabled disk.
January 8, 20197 yr Community Expert Don't know why the first diags was showing parity invalid. Don't know which diagnostics to trust. I guess if we can hope parity is valid then parity swap as johnnie said in the 2nd post. @crizz11 Can you read the emulated disk?
January 8, 20197 yr 5 minutes ago, trurl said: Can you read the emulated disk? Evidently not. 3 hours ago, crizz11 said: Probably should run file system checks in diagnostic mode and see if we can get the filesystem back first, unless the file system is unmountable because the auto option broke and needs to be manually set to ReiserFS. In any case, the next thing that needs to happen with this array after the disks are all healthy is a migration off ReiserFS. Performance has got to be pretty miserable with those large drives that full, and it's not going to get much better with 10TB disks.
January 8, 20197 yr Author also with that failed disk being emulated, I can access all my files no problems. This is why i thought adding a 10tb as parity 2 would work fine.
January 8, 20197 yr 7 minutes ago, crizz11 said: also with that failed disk being emulated, I can access all my files no problems. This is why i thought adding a 10tb as parity 2 would work fine. So, where this says unmountable is no longer the case? 3 hours ago, crizz11 said:
January 8, 20197 yr Community Expert 4 minutes ago, jonathanm said: Evidently not. Probably should run file system checks in diagnostic mode and see if we can get the filesystem back first, unless the file system is unmountable because the auto option broke and needs to be manually set to ReiserFS. His other screenshot though is showing it mounted ReiserFS. He says that screenshot was from 6.1.7, but it seems like he posted the screenshot showing unmountable before he upgraded. Very confusing. 1 minute ago, crizz11 said: what file system should i go with? Forget about that for now. You can't do anything about that until your array is healthy again. 4 minutes ago, crizz11 said: also with that failed disk being emulated, I can access all my files no problems. This is why i thought adding a 10tb as parity 2 would work fine. And latest diags tend to make me think the emulated disk is OK. Are you sure you can read the files on emulated disk1? Or are you just seeing files in your user shares and assume some of them are coming from disk1? Your diagnostics indicates all user shares exist on the other drives as well.
January 8, 20197 yr Author 6 minutes ago, jonathanm said: So, where this says unmountable is no longer the case? you are correct, it no longer says unmountable
January 8, 20197 yr Community Expert We don't really have logs from when disk1 was disabled. SMART looks OK to me, though as jonathanm indicated, a notorious model. Maybe he should just rebuild the disk to itself and then go about upsizing parity and other disks in the normal way. If for some reason the rebuild doesn't complete he would be right where he is now and could try the parity swap. Any opinions?
January 8, 20197 yr Author 11 minutes ago, trurl said: Are you sure you can read the files on emulated disk1? i can browse to /mnt/disk1 and see files, clicked on one and it started downloading ok from the web browser
January 8, 20197 yr 5 minutes ago, trurl said: Maybe he should just rebuild the disk to itself and then go about upsizing parity and other disks in the normal way. If for some reason the rebuild doesn't complete he would be right where he is now and could try the parity swap. Any opinions? Sounds like a plan. If the rebuild goes OK, then maybe replace parity, assuming that builds OK, add the second 10TB as an XFS data drive and copy the 3TB and one of the 4TB to it for file system migration.
January 8, 20197 yr Author sorry haven't done this before, how do i rebuild disk1 from parity? all good sorry, got it from here https://wiki.lime-technology.com/Troubleshooting#Re-enable_the_drive drive is rebuilding now Edited January 8, 20197 yr by crizz11
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